My Senior Sister Turned into a Dragon

The senior sister obtained a hidden profession and became a dragon. I lowered my head in confusion and looked at my pet bar interface. This is my pet pen, without a doubt, this is my pet pen. But... Why does Senior Sister appear in the pet pen? Okay, I understand, when I grow up, I want to be a dragon knight! ———————————————————————— Also known as: Sweet Life with Senior Sister Full control